After the torture of Alice and Frank, Augusta Longbottom take in Neville. He's all she's got after all.
The Valar never truly abandoned middle earth, their presence was always there to guide the lives of men and elves from the darkness. So when the they knew something evil was stirring once agian, the gods gave the mortal world their most precious star, Ilmarë.
Sixth year was suppose to be fun, her mother said. Oh, if living at Hogwarts ever was that easy.